obaa v2.0

* Better unit testing
* Fix bugs that new attributes cannot watch
* More functional's source code
* More concise naming
This commit is contained in:
dntzhang 2019-07-11 12:56:29 +08:00
parent 7e2df1e27e
commit fcfe12d9f7
5 changed files with 282 additions and 211 deletions

View File

@ -64,6 +64,10 @@ obj.c = 4 //trigger observe callback
//if obj.c is undefined
obj.c = 3
obj.c = 4 //don't trigger observe callback
//add new observer prop
obaa.add(obj, 'd')
obj.d = 1 //trigger observe callback
```
## License

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@ -1,164 +1,70 @@
/* obaa 1.0.0
/*
* obaa 2.0.0
* By dntzhang
* Github: https://github.com/Tencent/omi
* Github: https://github.com/Tencent/omi/tree/master/packages/obaa
* MIT Licensed.
*/
;(function(win) {
var obaa = function(target, arr, callback) {
var _observe = function(target, arr, callback) {
if (!target.$observer) target.$observer = this
var $observer = target.$observer
var eventPropArr = []
if (obaa.isArray(target)) {
if (target.length === 0) {
target.$observeProps = {}
target.$observeProps.$observerPath = '#'
// __r_: root
// __c_: prop change callback
// __p_: path
; (function (win) {
function obaa(target, arr, callback) {
var eventPropArr = []
if (isArray(target)) {
if (target.length === 0) {
target.__o_ = {
__r_: target,
__p_: '#'
}
$observer.mock(target)
}
for (var prop in target) {
if (target.hasOwnProperty(prop)) {
if (callback) {
if (obaa.isArray(arr) && obaa.isInArray(arr, prop)) {
eventPropArr.push(prop)
$observer.watch(target, prop)
} else if (obaa.isString(arr) && prop == arr) {
eventPropArr.push(prop)
$observer.watch(target, prop)
}
} else {
mock(target, target)
}
for (var prop in target) {
if (target.hasOwnProperty(prop)) {
if (callback) {
if (isArray(arr) && isInArray(arr, prop)) {
eventPropArr.push(prop)
$observer.watch(target, prop)
watch(target, prop, null, target)
} else if (isString(arr) && prop == arr) {
eventPropArr.push(prop)
watch(target, prop, null, target)
}
}
}
$observer.target = target
if (!$observer.propertyChangedHandler)
$observer.propertyChangedHandler = []
var propChanged = callback ? callback : arr
$observer.propertyChangedHandler.push({
all: !callback,
propChanged: propChanged,
eventPropArr: eventPropArr
})
}
_observe.prototype = {
onPropertyChanged: function(prop, value, oldValue, target, path) {
if (value !== oldValue && this.propertyChangedHandler) {
var rootName = obaa._getRootName(prop, path)
for (
var i = 0, len = this.propertyChangedHandler.length;
i < len;
i++
) {
var handler = this.propertyChangedHandler[i]
if (
handler.all ||
obaa.isInArray(handler.eventPropArr, rootName) ||
rootName.indexOf('Array-') === 0
) {
handler.propChanged.call(this.target, prop, value, oldValue, path)
}
}
}
if (prop.indexOf('Array-') !== 0 && typeof value === 'object') {
this.watch(target, prop, target.$observeProps.$observerPath)
}
},
mock: function(target) {
var self = this
obaa.methods.forEach(function(item) {
target[item] = function() {
var old = Array.prototype.slice.call(this, 0)
var result = Array.prototype[item].apply(
this,
Array.prototype.slice.call(arguments)
)
if (new RegExp('\\b' + item + '\\b').test(obaa.triggerStr)) {
for (var cprop in this) {
if (
this.hasOwnProperty(cprop) &&
!obaa.isFunction(this[cprop])
) {
self.watch(this, cprop, this.$observeProps.$observerPath)
}
}
//todo
self.onPropertyChanged(
'Array-' + item,
this,
old,
this,
this.$observeProps.$observerPath
)
}
return result
}
target[
'pure' + item.substring(0, 1).toUpperCase() + item.substring(1)
] = function() {
return Array.prototype[item].apply(
this,
Array.prototype.slice.call(arguments)
)
}
})
},
watch: function(target, prop, path) {
if (prop === '$observeProps' || prop === '$observer') return
if (obaa.isFunction(target[prop])) return
if (!target.$observeProps) target.$observeProps = {}
if (path !== undefined) {
target.$observeProps.$observerPath = path
} else {
target.$observeProps.$observerPath = '#'
}
var self = this
var currentValue = (target.$observeProps[prop] = target[prop])
Object.defineProperty(target, prop, {
get: function() {
return this.$observeProps[prop]
},
set: function(value) {
var old = this.$observeProps[prop]
this.$observeProps[prop] = value
self.onPropertyChanged(
prop,
value,
old,
this,
target.$observeProps.$observerPath
)
}
})
if (typeof currentValue == 'object') {
if (obaa.isArray(currentValue)) {
this.mock(currentValue)
if (currentValue.length === 0) {
if (!currentValue.$observeProps) currentValue.$observeProps = {}
if (path !== undefined) {
currentValue.$observeProps.$observerPath = path
} else {
currentValue.$observeProps.$observerPath = '#'
}
}
}
for (var cprop in currentValue) {
if (currentValue.hasOwnProperty(cprop)) {
this.watch(
currentValue,
cprop,
target.$observeProps.$observerPath + '-' + prop
)
}
}
eventPropArr.push(prop)
watch(target, prop, null, target)
}
}
}
return new _observe(target, arr, callback)
if (!target.__c_) {
target.__c_ = []
}
var propChanged = callback ? callback : arr
target.__c_.push({
all: !callback,
propChanged: propChanged,
eventPropArr: eventPropArr
})
}
obaa.methods = [
var triggerStr = [
'concat',
'copyWithin',
'fill',
'pop',
'push',
'reverse',
'shift',
'sort',
'splice',
'unshift',
'size'
].join(',')
var methods = [
'concat',
'copyWithin',
'entries',
@ -190,63 +96,168 @@
'values',
'size'
]
obaa.triggerStr = [
'concat',
'copyWithin',
'fill',
'pop',
'push',
'reverse',
'shift',
'sort',
'splice',
'unshift',
'size'
].join(',')
obaa.isArray = function(obj) {
function mock(target, root) {
methods.forEach(function (item) {
target[item] = function () {
var old = Array.prototype.slice.call(this, 0)
var result = Array.prototype[item].apply(
this,
Array.prototype.slice.call(arguments)
)
if (new RegExp('\\b' + item + '\\b').test(triggerStr)) {
for (var cprop in this) {
if (
this.hasOwnProperty(cprop) &&
!isFunction(this[cprop])
) {
watch(this, cprop, this.__o_.__p_, root)
}
}
//todo
onPropertyChanged(
'Array-' + item,
this,
old,
this,
this.__o_.__p_,
root
)
}
return result
}
target[
'pure' + item.substring(0, 1).toUpperCase() + item.substring(1)
] = function () {
return Array.prototype[item].apply(
this,
Array.prototype.slice.call(arguments)
)
}
})
}
function watch(target, prop, path, root) {
if (prop === '__o_') return
if (isFunction(target[prop])) return
if (!target.__o_) target.__o_ = {
__r_: root
}
if (path !== undefined && path !== null) {
target.__o_.__p_ = path
} else {
target.__o_.__p_ = '#'
}
var currentValue = (target.__o_[prop] = target[prop])
Object.defineProperty(target, prop, {
get: function () {
return this.__o_[prop]
},
set: function (value) {
var old = this.__o_[prop]
this.__o_[prop] = value
onPropertyChanged(
prop,
value,
old,
this,
target.__o_.__p_,
root
)
},
configurable: true,
enumerable: true
})
if (typeof currentValue == 'object') {
if (isArray(currentValue)) {
mock(currentValue, root)
if (currentValue.length === 0) {
if (!currentValue.__o_) currentValue.__o_ = {}
if (path !== undefined) {
currentValue.__o_.__p_ = path
} else {
currentValue.__o_.__p_ = '#'
}
}
}
for (var cprop in currentValue) {
if (currentValue.hasOwnProperty(cprop)) {
watch(
currentValue,
cprop,
target.__o_.__p_ + '-' + prop,
root
)
}
}
}
}
function onPropertyChanged(prop, value, oldValue, target, path, root) {
if (value !== oldValue && root.__c_) {
var rootName = getRootName(prop, path)
for (
var i = 0, len = root.__c_.length;
i < len;
i++
) {
var handler = root.__c_[i]
if (
handler.all ||
isInArray(handler.eventPropArr, rootName) ||
rootName.indexOf('Array-') === 0
) {
handler.propChanged.call(target, prop, value, oldValue, path)
}
}
}
if (prop.indexOf('Array-') !== 0 && typeof value === 'object') {
watch(target, prop, target.__o_.__p_, root)
}
}
function isFunction(obj) {
return Object.prototype.toString.call(obj) == '[object Function]'
}
function isArray(obj) {
return Object.prototype.toString.call(obj) === '[object Array]'
}
obaa.isString = function(obj) {
function isString(obj) {
return typeof obj === 'string'
}
obaa.isInArray = function(arr, item) {
for (var i = arr.length; --i > -1; ) {
function isInArray(arr, item) {
for (var i = arr.length; --i > -1;) {
if (item === arr[i]) return true
}
return false
}
obaa.isFunction = function(obj) {
return Object.prototype.toString.call(obj) == '[object Function]'
}
obaa._getRootName = function(prop, path) {
function getRootName(prop, path) {
if (path === '#') {
return prop
}
return path.split('-')[1]
}
obaa.add = function(obj, prop) {
var $observer = obj.$observer
$observer.watch(obj, prop)
obaa.add = function (obj, prop) {
watch(obj, prop, obj.__o_.__p_, obj.__o_.__r_)
}
obaa.set = function(obj, prop, value, exec) {
if (!exec) {
obj[prop] = value
}
var $observer = obj.$observer
$observer.watch(obj, prop)
if (exec) {
obj[prop] = value
}
obaa.set = function (obj, prop, value) {
watch(obj, prop, obj.__o_.__p_, obj.__o_.__r_)
obj[prop] = value
}
Array.prototype.size = function(length) {
Array.prototype.size = function (length) {
this.length = length
}
@ -259,4 +270,4 @@
} else {
win.obaa = obaa
}
})(Function('return this')())
})(Function('return this')());

View File

@ -1,6 +1,6 @@
{
"name": "obaa",
"version": "1.0.2",
"version": "2.0.0",
"description": "Observe any object's any change.",
"main": "index.js",
"scripts": {
@ -13,6 +13,7 @@
"obaa",
"omi",
"observe",
"watch",
"observable"
],
"author": "dntzhang",
@ -20,5 +21,5 @@
"bugs": {
"url": "https://github.com/Tencent/omi/issues"
},
"homepage": "https://github.com/Tencent/omi#readme"
"homepage": "https://github.com/Tencent/omi/tree/master/packages/obaa"
}

View File

@ -3,33 +3,38 @@
<head>
<title>obaa test</title>
<script src="deep-equal.js"></script>
<script src="util.js"></script>
<script src="../index.js"></script>
</head>
<body>
<a href="https://github.com/Tencent/omi" target="_blank" style="position:absolute;right:0;top:0;">
<img src="http://alloyteam.github.io/github.png" alt="" />
</a>
<script>
var result = [
['a', 2, 1, '#'],
['a', { b: 1 }, 2, '#'],
['a', { b: 1 }, 1, '#'],
['b', 'abc', 1, '#-a'],
['c', 3, undefined, '#'],
['c', 4, 3, '#'],
[1, 3, 2, '#']
['d', 5, undefined, '#'],
['h', {i:100}, undefined, '#-e'],
['i', 22, 100, '#-e-h'],
["1" ,3, 2, "#"]
]
</script>
<script>
var count = 0
var obj = { a: 1 }
var obj = { a: 1, e: { f: { g: 2 } } }
obaa(obj, function (prop, value, old, path) {
count++
var item = result.shift()
console.log(deepEqual(prop, item[0]), deepEqual(value, item[1]), deepEqual(old, item[2]), deepEqual(path, item[3]))
log(deepEqual(prop, item[0]), deepEqual(value, item[1]), deepEqual(old, item[2]), deepEqual(path, item[3]))
})
obj.a = 2
obj.a = { b: 1 }
obj.a.b = 'abc'
@ -38,29 +43,37 @@
obaa.set(obj, 'c', 3);
obj.c = 4;//c__4__3__#
console.log(count === 4)
obaa.add(obj, 'd');
obj.d = 5;//c__4__3__#
obaa.set(obj.e, 'h', {i:100})
obj.e.h.i = 22
log(count === 7)
</script>
<script>
var arr = [1, 2]
obaa(arr, function (prop, value, old, path) {
count++
if (count === 6) {
console.log(deepEqual(prop, 'Array-push'), deepEqual(value[2], 'abc'), deepEqual(old, [1, 3]), deepEqual(path, '#'))
} else if (count === 7) {
} else if (count === 8) {
console.log(prop === 'newItem', value === 22, old === 11, path === '#-3')
} else if (count === 9) {
console.log(prop === 'Array-size', value.length === 2, old.length === 4, path === '#')
if (count === 9) {
log(deepEqual(prop, 'Array-push'), deepEqual(value[2], 'abc'), deepEqual(old, [1, 3]), deepEqual(path, '#'))
} else if (count === 10) {
} else if (count === 11) {
log(prop === 'newItem', value === 22, old === 11, path === '#-3')
} else if (count === 12) {
log(prop === 'Array-size', value.length === 2, old.length === 4, path === '#')
} else if (count === 13) {
//console.log(prop, value, old, path)
} else {
} else if(count==8){
var item = result.shift()
console.log(deepEqual(prop, item[0]), deepEqual(value, item[1]), deepEqual(old, item[2]), deepEqual(path, item[3]))
log(deepEqual(prop, item[0]), deepEqual(value, item[1]), deepEqual(old, item[2]), deepEqual(path, item[3]))
}
})
@ -82,10 +95,39 @@
arr.push(111)
//will not trigger callback
arr.purePush(111)
console.log(count === 10)
log(count === 13)
</script>
<script>
var countB = 0
var objB = { a: 1, b: 2 }
obaa(objB, ['b'], function (prop, value, old, path) {
countB++
log(prop == 'b', value == 3, old == 2, path == '#')
})
objB.a = 2
objB.b = 2
objB.b = 3
log(countB === 1)
</script>
<script>
</script>
<a href="https://github.com/Tencent/omi" target="_blank" style="position:absolute;right:0;top:0;">
<img src="http://alloyteam.github.io/github.png" alt="" />
</a>
</body>
</html>
</html>

View File

@ -87,3 +87,16 @@
}
window.deepEqual = deepEqual
function log() {
for (var i = 0, len = arguments.length; i < len; i++) {
if (!arguments[i]) {
console.error.apply(null, arguments)
return
}
}
console.log.apply(null, arguments)
}